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// Copyright 2020 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package task
import "context"
// Func wrap a closure.
type Func struct {
name string
fn func(ctx context.Context) error
}
// NewFunc create a Func task
func NewFunc(name string, fn func(ctx context.Context) error) *Func {
return &Func{
name: name,
fn: fn,
}
}
// Execute implements the Task interface
func (m *Func) Execute(ctx context.Context) error {
return m.fn(ctx)
}
// Rollback implements the Task interface
func (m *Func) Rollback(_ context.Context) error {
return ErrUnsupportedRollback
}
// String implements the fmt.Stringer interface
func (m *Func) String() string {
return m.name
}
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